Home / 920,659,214.68-1,381,861,905.92-569,844,101.52

Finding the Fourth Proportional to 920,659,214.68, 1,381,861,905.92 and 569,844,101.52

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Solution

The fourth proportional to 920,659,214.68, 1,381,861,905.92 and 569,844,101.52 is: 855,306,549.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,659,214.68 : 1,381,861,905.92 = 569,844,101.52 : x
  2. Step 2: Convert to fraction form
    920,659,214.68/1,381,861,905.92 = 569,844,101.52/x
  3. Step 3: Cross multiply
    920,659,214.68x = 1,381,861,905.92 × 569,844,101.52
  4. Step 4: Simplify right side
    920,659,214.68x = 787,445,856,203,697,152
  5. Step 5: Solve for x
    x = 787,445,856,203,697,152/920,659,214.68
  6. Step 6: Final answer
    x = 855,306,549.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.